docs: add opentab to projects (cost / token exploration TUI)

data/projects/opentab.yaml

@@ -0,0 +1,32 @@
+name: OpenTab
+repo: https://github.com/hamidi-dev/opentab
+tagline: Terminal UI for browsing your OpenCode spend by month, day, project, session, and model
+description: >-
+  A terminal UI that reads OpenCode's local SQLite database (read-only) to show
+  where your tokens and money went — by month, day, project, session, and model,
+  with spend-over-time trends and drill-down into your most expensive sessions
+  (model mix and subagent costs included). Standard-library Python only, offline
+  by default. Also reads Claude Code, Codex, the Copilot CLI, and more.
+tags:
+  - cost
+  - tokens
+  - usage
+  - tui
+  - analytics
+  - sqlite
+installation: |
+  Python 3.9+, standard library only. PyPI package is `opentab-ai`; the command
+  is `opentab`.
+
+  ```bash
+  pipx install opentab-ai
+  ```
+
+  Or Homebrew / the install script:
+
+  ```bash
+  brew install hamidi-dev/tap/opentab
+  curl -fsSL https://raw.githubusercontent.com/hamidi-dev/opentab/main/install.sh | bash
+  ```
+
+  Then run `opentab`, or `opentab --demo` for an anonymized demo.